Lens barrel and camera having the same

Details Lens barrel and camera having the same Lens barrel and camera having the same

2006-10-31

2006-10-31

Perkey, W. B. (Department: 2851)

Photography

Camera detail

Lens cover

Reexamination Certificate

active

07128480

ABSTRACT:
A lens barrel comprises a first frame including an inward flange having an opening as a light path for a photographic optical system, a barrier-driving member disposed in the vicinity of the opening, a second frame disposed inside the first frame and movable along an optical axis relative to the first frame, a barrier blade movable along with the rotation of the barrier-driving member between a closed position in which the barrier blade blocks at least a part of the light path and an open position in which the barrier blade is retracted from the light path, an opening-urging member capable of urging the barrier blade towards the open position and urging the barrier-driving member towards a first direction, and a closing-urging member capable of urging the barrier blade toward the closed position.

REFERENCES:
patent: 4864338 (1989-09-01), Wakabayashi
patent: 5614973 (1997-03-01), Azegami
patent: 5761556 (1998-06-01), Ichino
patent: 6164842 (2000-12-01), Ohta et al.
patent: 6520691 (2003-02-01), Nomura et al.
patent: 6988837 (2006-01-01), Ichino
patent: 07-020369 (1995-01-01), None
patent: 07-020536 (1995-01-01), None
patent: 07-159855 (1995-06-01), None

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